Method for enhancing vehicle camera image quality

  • US 10,257,432 B2
  • Filed: 09/25/2017
  • Issued: 04/09/2019
  • Est. Priority Date: 09/26/2011
  • Status: Active Grant
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First Claim
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1. A method of image enhancement for a vehicle vision system, said method comprising:

  • (a) providing a camera at a vehicle so that the camera has an exterior field of view;

    (b) providing a processor operable to process image data;

    (c) capturing multiple frames of image data with the camera;

    (d) enhancing contrast in image data by tone mapping;

    (e) tracking, as the vehicle moves, contrast thresholds within the captured frames of image data with respect to image flow caused by the vehicle'"'"'s movement;

    (f) passing image data of a first frame of captured image data through two individual image transfer functions to generate a first transferred frame of image data;

    (g) blending the first transferred frame with a second frame of image data;

    (h) detecting, at least via processing of image data by the processor, presence of an object in the field of view of the camera; and

    (i) generating an output responsive to detection of the object present in the field of view of the camera.

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